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        1. 上海乾思生物科技有限公司
          中級(jí)會(huì)員 | 第16年

          18916423352

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          選購(gòu)移液器的方法

          時(shí)間:2011/10/13閱讀:567
          分享:
          乾思 生物編輯整理:
          選購(gòu)移液器的方法主要以下幾點(diǎn):
          *.產(chǎn)品的可靠耐用這一方面,主要取決于移液器所用的材料。對(duì)于外殼,應(yīng)當(dāng)有較高的耐沖擊性、耐腐蝕性和較低的導(dǎo)熱性(如PVDF材質(zhì));對(duì)于活塞,目前市場(chǎng)上主要有不銹鋼、陶瓷和塑料三種材質(zhì)。不銹鋼機(jī)械性能好、壽命長(zhǎng),只是不太適合用于強(qiáng)酸強(qiáng)堿的移液;陶瓷則有很高的耐腐蝕性,但機(jī)械性能較差。當(dāng)然,的材料往往意味著更高的價(jià)格,所以需要綜合考慮購(gòu)買價(jià)格和壽命的因素。 
          第二. 產(chǎn)品性能,即移液器的準(zhǔn)確性和重復(fù)性對(duì)于絕大多數(shù)用戶而言,購(gòu)買之前檢測(cè)產(chǎn)品性能既有難度又無必要。因此,主要還是依據(jù)制造廠商提供的技術(shù)數(shù)據(jù)。但在這里還是要說明兩點(diǎn):其一,不要輕易相信賣家的口頭承諾,一定要查閱制造商提供的書面材料;其二,在移液器市場(chǎng)上影響較大的品牌,如美國(guó)Labnet, SOCOREX,EPPENDORF和GILSON等,其提供的技術(shù)數(shù)據(jù)可信度更高。 
          第三.產(chǎn)品的人體工程學(xué)設(shè)計(jì)主要可以考慮以下幾點(diǎn):
          1,比較相同量程的移液器完成一次排液(一定要按到底)所需的拇指用力,這是影響舒適性的關(guān)鍵,用力越少意味著長(zhǎng)期使用造成手指損傷的風(fēng)險(xiǎn)越??;  
          2,完成一個(gè)移液循環(huán)拇指的移動(dòng)距離短,意味著舒適度更高;
          3,移液器的重量適中,過重會(huì)增加手的負(fù)擔(dān),但過輕也往往意味著材質(zhì)可能差強(qiáng)人意;
          4,裝卸吸頭,同樣是越省力越好;
          5,其它的輔助設(shè)計(jì),如殼體的磨砂設(shè)計(jì)以及指鉤設(shè)計(jì),有助于進(jìn)一步提高舒適性。SOCOREX在人體工程學(xué)方面,在移液器市場(chǎng)都處于的位置,在以上幾點(diǎn)都有的表現(xiàn)。
          6,新出的實(shí)驗(yàn)儀器生力軍beyonlab 集團(tuán)的innopette移液器嚴(yán)格按照人體工學(xué),根據(jù)歐美和亞洲人的手部數(shù)據(jù)重新量身打造了適用不同區(qū)域的移液器,對(duì)實(shí)驗(yàn)操作人員的關(guān)心更進(jìn)一步。

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